英仙座OB1
英仙座OB1是在北天球英仙座的一个OB星协。它以双星团（NGC 869和NGC 884）为中心[4]，名称来源于银河系的英仙臂[7]。星协成员中最明亮的恒星是蓝超巨星大陵一（英仙座9）[3]。
| 英仙座OB1 | |
|---|---|
 | |
| 观测数据 | |
| 星座 | 英仙座 |
| 赤经 | 02h 21m[1] |
| 赤纬 | +57° 36′[1] |
| 平均距离 | 5.9 kly（1.8 kpc）[2] |
| Span | 1,000 × 750 light years[3] |
| 径向速度 | −43.4[2] km/s |
| 物理性质 | |
| 成员 | 149[4] |
| OB星 | ≥65[5] |
| 其它名称 | Per OB1[6] |
参考数据
- Sitnik, T. G. . Astronomy Letters. May 2003, 29: 311–320. Bibcode:2003AstL...29..311S. doi:10.1134/1.1573280.
- Mel'Nik, A. M.; Dambis, A. K. . Monthly Notices of the Royal Astronomical Society. 2009, 400 (1): 518. Bibcode:2009MNRAS.400..518M. arXiv:0909.0618
. doi:10.1111/j.1365-2966.2009.15484.x . - Crossen, Craig; Rhemann, Gerald. . Springer Science & Business Media. 2012: 93. ISBN 9783709106266.
- Lee, Hsu-Tai; Lim, Jeremy. . The Astrophysical Journal. June 2008, 679 (2): 1352–1363. Bibcode:2008ApJ...679.1352L. arXiv:0804.4520 . doi:10.1086/587801.
- Beech, Martin; Slawson, Robert W. . Astrophysics and Space Science. December 1995, 234 (2): 217–221. Bibcode:1995Ap&SS.234..217B. doi:10.1007/BF00627667.
- . SIMBAD. 斯特拉斯堡天文数据中心.
- Inglis, Michael. . New York, New York: Springer Science & Business Media. 2013: 184. ISBN 978-1-4614-7567-5.
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